Geographical Information Geographical Information (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Revenue and Long Lived Assets by Geographic Area

	United States		Foreign Countries		Total
Revenues, less transaction-based expenses:
Year ended December 31, 2014	$	1,859	$	1,233	$	3,092
Year ended December 31, 2013	$	842	$	756	$	1,598
Year ended December 31, 2012	$	715	$	648	$	1,363
Net assets:
As of December 31, 2014	$	5,437	$	7,120	$	12,557
As of December 31, 2013	$	3,615	$	9,088	$	12,703
Property and equipment, net:
As of December 31, 2014	$	734	$	140	$	874
As of December 31, 2013	$	653	$	236	$	889